Question

What are the vertex and the axis of symmetry of the equation?

y = –2x2 + 8x – 18

A. vertex: ( 2, –10)
axis of symmetry: x = 2

B. vertex: (2, –10)
axis of symmetry: x = –10

C. vertex: (–2, –10)
axis of symmetry: x = –2

D. vertex: (–2, 10)
axis of symmetry: y = –2